Columbiad (English Columbiad) - the American version of the large-caliber smooth-bore gun, loaded from a muzzle, designed to fire heavy shells on a high or low trajectory. The design allowed the Columbiad to fire with both molten nuclei and bombs, which was convenient for organizing coastal defense. The gun was invented by the American Colonel George Bomford in 1811, it was used in the US coastal fortifications from the war of 1812 until the first years of the XX century. Columbiads were almost never used outside the United States, but they may have influenced the work of engineer Peksan 30 years later.
Columbiad entered the literature thanks to the writer Jules Verne , who described them in detail in his novel “ From Earth to the Moon ”.
Columbiads appear in Fallout 4 as artillery used by a recreated minuteman faction. It is possible to create columbiads in settlements controlled by the player.